What is CVE-2024-40917?

CVE-2024-40917 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.6.70 onward and patched in 6.6.72, 6.9.6 and 6.10. CVE-2024-40917 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-40917?

CVE-2024-40917 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2024-40917?

Yes, CVE-2024-40917 has been patched. Fixed versions include 6.6.72, 6.9.6 and 6.10. If you are running Linux kernel 6.6.70 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-40917 actively exploited?

CVE-2024-40917 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-40917

Medium

In the Linux kernel, the following vulnerability has been resolved: memblock: make memblock_set_node() also warn about use of MAX_NUMNODES On an (old) x86 system with SRAT just covering space above 4Gb: ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0xfffffffff] hotplug the commit referenced below leads to this NUMA configuration no longer being refused by a CONFIG_NUMA=y kernel (previously NUMA: nodes only cover 6144MB of your 8185MB e820 RAM. Not used. No NUMA configuration found Faking a node at [mem 0x0000000000000000-0x000000027fffffff] was seen in the log directly after the message quoted above), because of memblock_validate_numa_coverage() checking for NUMA_NO_NODE (only). This in turn led to memblock_alloc_range_nid()'s warning about MAX_NUMNODES triggering, followed by a NULL deref in memmap_init() when trying to access node 64's (NODE_SHIFT=6) node data. To compensate said change, make memblock_set_node() warn on and adjust a passed in value of MAX_NUMNODES, just like various other functions already do.

Package Linux Kernel

Published 2024-07-12

Last modified 2025-10-03

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected versions

Linux kernel versions 6.6.70, 6.8 and later are affected. Fixed in 6.6.72, 6.9.6, 6.10 and their respective stable series.

Affected from

≥ 6.6.70 ≥ 6.8

Fixed in

✓ 6.6.72 6.6.x ✓ 6.9.6 6.9.x ✓ 6.10

References

3 total

Kernel Git
https://git.kernel.org/stable/c/22f742b8f738918f683198a18ec3c691acda14c4

Patch
Kernel Git
https://git.kernel.org/stable/c/4ddb7f966f3d06fcf1ba5ee298af6714b593584b

Patch
Kernel Git
https://git.kernel.org/stable/c/e0eec24e2e199873f43df99ec39773ad3af2bff7

Patch

Details

CVE ID CVE-2024-40917

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-07-12

Modified 2025-10-03

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-40917?

CVE-2024-40917 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.6.70 onward and has been patched in 6.6.72, 6.9.6 and 6.10. CVE-2024-40917 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-40917?

CVE-2024-40917 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2024-40917?

Yes. CVE-2024-40917 has been patched. Fixed versions include 6.6.72, 6.9.6 and 6.10. If you are running Linux kernel 6.6.70 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-40917 actively exploited?

No. CVE-2024-40917 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.